Use After Free Affecting php70-dbg package, versions <0:7.0.14-1.20.amzn1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-AMZN201803-PHP70DBG-1703905
- published27 Sept 2021
- disclosed4 Jan 2017
Introduced: 4 Jan 2017
CVE-2016-9936 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2018.03 php70-dbg to version 0:7.0.14-1.20.amzn1 or higher.
This issue was patched in ALAS-2017-788.
NVD Description
Note: Versions mentioned in the description apply only to the upstream php70-dbg package and not the php70-dbg package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.
The unserialize implementation in ext/standard/var.c in PHP 7.x before 7.0.14 allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via crafted serialized data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-6834.
References
- http://www.securityfocus.com/bid/94849
- https://bugs.php.net/bug.php?id=72978
- https://github.com/php/php-src/commit/b2af4e8868726a040234de113436c6e4f6372d17
- http://www.php.net/ChangeLog-7.php
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9936
- http://www.openwall.com/lists/oss-security/2016/12/12/2
- https://access.redhat.com/errata/RHSA-2018:1296
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00034.html